NYC-WTC_000207488

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1944. Lab Group #: ■8121" . Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 5 •Grid Opening Size: 0..0H24 ■, Client Sample #: 5 Area Examined: 0.04496

GRID BOX:’* Magnification: 20,000 . GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: . 6/15/02

Analysis Performed By: . ■ ' ROMAN PEYSAKHOV’

GO. Structure Structure Type Length ID'ofStructure 'Nor N EDS- No (Nonadb •. F B C M >=05 p •>=5p Ctirys Amphibole Nonasb Ambig/ND No ■ Coord <5p ' Elements)

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Slruct = >0.5p > 5;I Aspect Ratio Grid acceptance: n/= Positive diffraction pattern properties conforming to “ridissolved filter, overlapped or folded . Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m 'i- EDS spectrum conlorming to laboratory holes or opaque areas identification criteria observed Chrysotile ■ Amphiboles'" Amphibole F = Single Fiber Amosite E = Bundle (<3 fibers <1 fiber diameter apart ' Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite i t ■ Actinolite Non-ldentified ' NSD = No Structures Detected

CITY_21MC100_003015288

NYC-WTC_000207488